134 entries under firm topic. ×
| intractable(adjective, hard, tough, rough) | |
| stony(adjective, hard, careless, indifferent) | |
| buckram(adjective, hard, dead, rigid) | |
| hidebound(adjective, close, restraint, determined) | |
| starched(adjective, characteristic, hard, correct) | |
| steely(adjective, set, hard, dead) | |
| thick(adjective, set, hard, tough, rough) | |
| ungraceful(adjective, hard, rude, coarse) | |
| unswayable(adjective, tough, determined, resolute) | |
| aloof(adjective, cool, tough, correct) | |
| callous(adjective, set, strong, hard, severe) | |
| compact(adjective, set, hard, tough) | |
| distant(adjective, tough, correct, cold) | |
| graceless(adjective, hard, rude, coarse) | |
| stark(adjective, hard, utter, rigid) | |
| brittle(adjective, hard, tense, rigid) | |
| staunch(adjective, set, strong, hard) | |
| uptight(adjective, tough, uncertain, anxious) | |
| compressed(adjective, set, hard, tough) | |
| forceful(adjective, strong, great, severe) |
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| APA | Smart Define. (2015). stiff thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/stiff/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "stiff thesaurus" https://smartdefine.org/stiff/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, stiff thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/stiff/thesaurus/synonyms>. |
| MLA | Smart Define. "stiff thesaurus" 24 December 2015. Web. 25 September 2026. <https://smartdefine.org/stiff/thesaurus/synonyms> |